re: possible bug x86 2.4.2 SMP in IP receive stack

Bob Felderman (feldy@myri.com)
Fri, 23 Feb 2001 15:03:01 -0800


=> From feldy Fri Feb 23 14:13:08 2001
=>
=> Feb 23 12:42:30 rcc2 kernel: Warning: kfree_skb passed an skb still on a list (from c01f58dc).
=>
=> I'm going to pop out one processor on the receiver
=> and see if that makes the problem go away.

Using a single processor on the receive side makes the problem go away.
I see no problems on the receiver with one cpu removed.

rcc2 29% netstat -i myri0
Kernel Interface table
Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0 1500 0 37857 0 0 0 36404 0 0 0 BRU
lo 16192 0 46 0 0 0 46 0 0 0 LRU
myri0 9000 0 20564644 0 0 0 312 0 0 0 BRU

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